This rifle appears to be a highly modified Stevens 1915 favorite. The receiver has been hot tank reblued. Color hardened cast steel usually turns a purple/bronze color after a hot tank reblue. Did someone modify an original Stevens Pope barrel to fit a favorite action?  It's definitely not a 417 Stevens.

The bbl marking 'Stevens Pope' and 417-2 marking are hand stamped w/ individual stamps.
? Is that the way the orig STevens-pope bbls were marked?

The 417-2 marking is of different hand stamp size and font. No alignment with the S-P marking and indiv out of alignment with each other.
A bounce strike/ghost image of the 4 can be seen just to the left of the imprinted 4.
The Stevens-Pope marking is pretty well accomplished with individual stamps. But you can still see slight problems stamp to stamp with vertical and horizontal alignments.
Spacing is pretty good as well. The worst is the MO in Model.
In cutting a one piece stamp or roll die for a line of text, this would never occur

(The 'Pat Pending' mark does appear to have been done with a one piece stamp though. The very light imprint not unusual for a fairly large one piece stamp. Plus it's cockeyed)

The engraved screw heads add to the 'custom gunsmith build' idea of it all. 
Screw heads are not hard to learn to do. Engraving scroll work and figures is a complete other level.

The butt stock dos not fit the frame and tangs very well at all.
Oversize yet uneven in that height. Poor abutment to the frame. 
With the look of the grip portion on top around and behind the TangSight, I'd guess the stock was off of another gun an reporposed as they say on this one. See the overhead view pic on RF Central of the tang site and notice the stock wood in the background.
The butt stock has wide gaps on the bottom where it meets the frame.
The forend gaps the front of the frame at an angle.
That 'ivory' inlay on the FE is such a nice touch.

The bbl polish looks to have been done diagonally from the grit or machine marks. Certainly not a Factory look I would say.

The extra pics on RF Central show all of this.

Hot blued metal finish with the expected red/plum/bronze color to the cast frame. The other 'steel' parts blued OK of course.

A home built custom rifle made by who knows from parts from unkn.
I wouldn't get too excited about the rifle.

JMO of course.